baber/WOPTO huggingface dataset:
Patent GB-819789-A (GB)
Title: Improvements in memory devices
IPC: G11B5/55
Filed: 1955-12-20
Abstract: 819,789. Electric motor driving arrangements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 20, 1955 [Dec. 24, 1954], No. 36437/55. Class 35. [Also in Groups XIX, XXVI and XXXVIII] In an electric servo-system for a data-storage device (see Groups XIX and XXXVIII), a wheel 152 is positioned by selectively energizing a pair of oppositely driven magnetic-power clutches 148, 149 so that one is excited more than the other and therefore the driving torque in one direction or the other predominates. Specifications 684,273, [Group XVI], 748,996, 763,815 and 764,434, [all in Group XXXVIII], are referred to.
Patent GB-865694-A (GB)
Title: Induction rotors for electrical integrating meters and the like
Inventor: PURKIS JOHN
IPC: G01R11/02
Filed: 1958-11-13
Abstract: 865,694. Induction motors. CHAMBERLAIN & HOOKHAM Ltd. Nov. 5, 1959 [Nov. 13, 1958], No. 36498/58. Class 35. [Also in Group XXXVI] An induction rotor for an electrical integrating meter and the like comprises a laminated disc 3 including a plurality of circular laminations 4 insulated from each other and each having a plurality of angularly spaced slots 6 extending radially towards its periphery from a central aperture 7 in which is located a hub 8 either of electrically insulating material or insulated therefrom. The radial slots 6 and arcuate branch slots 6a in each lamination 4 may be angularly spaced from those of other laminations.
Patent GB-169409-A (GB)
Title: Improvements in methods and means for shaping stiff felt and like hats
IPC: A42C1/04
Filed: 1920-12-30
Abstract: 169,409. Muret, A. Dec. 30, 1920. Shaping.-In a method of, and apparatus for, shaping stiff felt and like hats, the inside of the top of the hat A is first softened by steam introduced, for example, by a steam-pipe 4, Fig. 1, and the hat is stretched on a wooden form. The outside of the top of the hat is then softened by steam, for example by inverting the hat in a bulged, cylinder 8, Fig. 4, and the top is again stretched. The halves of the brim are then successively softened by insertion in a steam casing 9. Fig. 7, having a semicircular sliding door 10 to cut off steam from the top of the hat and a gutter 13 to receive water of condensation. Each half of the brim is shaped and trimmed in the known manner immediately after softening.
Patent GB-901910-A (GB)
Title: Playing balls
IPC: A63B37/00
Filed: 1959-10-28
Abstract: A highly resilient polyurethane composition, comprises the reaction product of (1) 2 chemical equivalents of a polyalkylene ether glycol having a average molecular weight of from 1,000 to 5,000, having from 4 to 8 carbon atoms in its alkylene groups, having terminal primary and/or secondary hydroxyl groups and having a melting point below about 100 DEG C., (2) from 0,45 to 2,0 equivalents of an aliphatic polyol soluble in the glycol and having from 3 to 40 carbon atoms and from 3 to 8 hydroxyl groups selected from the group consisting of primary and secondary hydroxyl radicals and being free of nitro groups and of amino hydrogen atoms, and (3) from 2,45 to 4,0 equivalents of an aromatic diisocyanate soluble in the glycol, the equivalents of the diisocyanate being at least equal to the total of the equivalents of the glycol and the polyol.  Playing balls consisting of or having a core of the composition are produced. Polyalkylene glycols and polyisocyanates are listed.  Suitable polyols are glycerol, 1,2,4-butanetriol, trimethylol ethane or propane, phenyl trimethylol methane, 1,1,1-trimethylol 2,4,4-trimethylpentane, 1,1,1-trimethyolhexane, pentaerythrityl mono oleate and N,N,N1,N1-tetrakis(2-hydroxypropyl) ethylene diamine. Specified catalysts are triethylamine, N-methylmorpholine, N,N1-bis(2-hydroxypropyl)-2-methyl-piperazine, N,N1-diethyl-2-methyl-piperazine, N-2-hydroxy-propyldimethyl morpholine, dimethylethanol amine and alkali metal salts of organic acids.  Loading fillers or pigments should have a density of at least 5, a pH of 7 in aqueous media and preferably pass a 100 mesh U.S.S. screen.  Examples are red iron oxide, green chrome oxide, iron and nickel.  In a typical Example (1) a spherical casting is prepared from a melt obtained by heating together polytetramethylene ether glycol of molecular weight 3,000, p-phenylene diisocyanate and trimethylol propane.
Patent GB-1356173-A (GB)
Title: Tubular members made as high-melting glass quartz material or  quartz glass
IPC: C03B23/07
Filed: 1971-08-04
Abstract: 1356173 Corrugated glass tubes HERAEUSSCHOTT QUARZSCHMELZE GmbH 4 Aug 1971 [8 Aug 1970] 36686/71 Heading C1M [Also in Division F2]  A tubular member consists of glass with a transformation region above 450‹ C., quartz or quartz-glass and has at least one wall corrugated along its longitudinal length so as to consist of a plurality of wave crests and troughs, the distance between successive points of inversion of both the crests and troughs being between 3 and 20 mm, the difference in height between the bottom of a wave trough and the summit of a wave crest being between 2 and 20 mm., and the smallest inside clear width of the tubular member being more than three times said difference in height. Such a tubular member is produced by heating a tubular body until plastic and bringing the body into contact with a matrix provided with the necessary corrugations. The body may be pressed, centrifuged or blown on to the matrix. A rectangular cross-section member may be produced by introducing a graphite matrix 5 into a tubular body 1, heating the body by means of a gas burner 7 and applying a vacuum to its interior. A tubular member in which the corrugations are helical may be produced by rolling or hobbing a heated tubular body in relation to a graphite worm-wheel.
Patent GB-423463-A (GB)
Title: Improvements relating to shoe press pads
IPC: A43D25/10
Filed: 1933-12-30
Abstract: 423,463. Boot - making machines. COMPO SHOE MACHINERY CORPORATION, 565, 5th Avenue, New York, U.S.A. Dec. 30, 1933, No. 36743. Convention date, Aug. 8. Drawings to Specification. [Class 17 (i)] Sole-laying.-An inflatable pad for use in a sole-laying press is thickest at the shank portion and thinnest at the fore-part portion. The thicker shank portion is of greater longitudinal extent at the side contacting with the inside of the shoe, and the whole pad is thicker at the inside edge than at the outside edge. Specification 394,390 is referred to.
Patent GB-1236852-A (GB)
Title: A scoreboard
Inventor: LINDBERG OSWALD
IPC: A63B71/06
Filed: 1969-07-24
Abstract: 1,236,852. Scoreboard. O. LINDBERG. 24 July, 1969, No. 37212/69. Heading A6D. A scoreboard 11 for display of the relative positions of competitors and other data comprises a display surface 12 behind which is disposed a metal sheet and then a cardboard sheet. The display surface has a stepped graduation 13 extending diagonally across it, and each horizontal plateau 131 has beneath it a number indicating the position in a league. Plaques 141 each indicate a different team and are attached to the surface below the stepped graduation, to indicate the positions of the teams in the league. Further plaques 142 are attached to the surface above the stepped graduation to indicate the pairing of competitors for the next day of play. Further plaques 143 are attachable to the screen to provide additional data. The plaques are all attached by means of magnets. Another embodiment of the invention includes only the plaques to indicate the positions of the teams.
Patent GB-522986-A (GB)
Title: Improvements in electrical relays
IPC: H03K5/04
Filed: 1938-12-22
Abstract: 522,986. Electromagnetic relays. PRESSEL, O., and BALDWIN ELECTRO-MEDICAL, Ltd. Dec. 22, 1938,. No. 37283. [Class 38 (v)] A relay B, adapted to be operated by the momentary completion of a circuit at A, is held closed for say half a second, by the discharge of a previously charged condenser F. The condenser F . has been charged by the battery C through a high resistance D and now discharges through relay contacts G. a lower resistance E and the relay coil B. The current from the battery C through resistances D and E and contacts G is insufficient to hold the relay closed. The resistances D, E may be replaced by condensers and the switch A by a thermionic valve.
Patent GB-1062854-A (GB)
Title: Improvements in circuits for protecting electrical power sources
IPC: G05F1/573
Filed: 1965-09-01
Abstract: 1,062,854. Transistor switching circuits. GENERAL ELECTRIC CO. Sept. 1, 1965 [Oct. 5, 1964], No. 37304/65. Heading H3T. [Also in Division H2] An under- and over - voltage protective arrangement comprises a relay 21 having its operating coil connected in the collector circuit of a normally-conducting first transistor 35 which has its base biased by a voltage derived from an auxiliary current source 54, a Zener diode 55 and a potentiometer 59 and corresponding to the minimum permissible voltage to be applied to a load 24. A second transistor 42 is normally non-conducting and has its base biased by a voltage derived from a potentiometer 62 and corresponding to the maximum permissible voltage. When the load voltage falls below the lower limit, the potential difference between the emitter and base of the first transistor 35 is insufficient for the transistor 35 to remain conducting so that the relay opens. Should the load voltage rise above the upper limit, then the potential difference between the emitter and base of the second transistor 42 is sufficient for the transistor 42 to conduct, so increasing the voltage at the base of the transistor 35 and rendering the transistor 35 non- conductive. A third transistor 28 may provide over-current protection, this transistor being non-conductive until the voltage drop due to excess current through a potentiometer 64 biases the transistor 28 to conduction. The resulting current through the transistor 28 passes through the potentiometer 59 and the increased voltage drop across this potentiometer biases the transistor 35 to non-conduction. As the emitters of the transistors 35, 42 are connected to the load terminal, manual or other resetting of the relay is necessary to restore the supply. A germanium diode 72 provides temperature compensation for the germanium transistor 28 and a capacitor 71 provides a slight delay to avoid incorrect operation by current transients.
Patent GB-344788-A (GB)
Title: Improvements in and relating to elastic suspension means for vehicles
IPC: B60G11/14
Filed: 1929-12-05
Abstract: 344,788. Vehicle suspension systems. DUBONNET, A., 114, Boulevard Maurice BarrÞs, Neuilly-sur-Seine, France. Dec. 5, 1929, No. 37352. Convention date, Oct. 23. [Classes 108 (ii) and 108 (iii).] Relates to a vehicle suspension means, of the type having fixed to the vehicle frame a casing e containing bearings which support a shaft b having arms c acted on by helical springs or other elastic means for opposing rotation of the shaft, the shaft having rigidly secured thereto a bent arm a carrying one of the wheels. According to the invention the arms c co-operate with a plurality of helical springs f<1>, f<2> enclosed in telescopic cylinders g, i having openings i which permit but restrict the flow of damping fluid into and out of the cylinders. Springs j opposing the main springs f<1>, f<2> may be provided. Frictional fittings j<1>, j<2> mounted in the interior of the casing e may also be provided to damp rotation of the shaft.
Patent GB-433919-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1934-12-31
Abstract: 433,919. Mercury-vapour generators. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 31, 1934, No. 37394. Convention date, Dec. 30, 1933. [Class 122 (iii)] In a mercury boiler, liquid vapour separating means are arranged in the space of the drum between the discharge pipe 12 and the tubes 11 which supply to the drum a mixture of mercury and vapour. An inverted cup 15 held by radial supports has concentrically arranged around it sheets of metal 17 with wire mesh screens 18 arranged between them. In a modification, concentric corrugated spaced sheets are employed. Specification 319,220, [Class 122 (iii)], is referred to.
Patent GB-977727-A (GB)
Title: Production of monoglycol terephthalate
Inventor: SCHENK WALTER
IPC: C07C69/82
Filed: 1963-09-24
Abstract: Monoethyleneglycol terephthalate is produced by reacting ethylene oxide with an acid alkali-metal terephthalate in an aqueous suspension under atmospheric or superatmospheric pressure at 60-250 DEG C. until the pH is 7-9 and acidifying the reaction mixture. Specification 816,248 and German Specification 956,040 are referred to.
Patent GB-1291315-A (GB)
Title: Regenerative heat exchanger for a gas turbine engine
IPC: F28F21/04
Filed: 1970-08-04
Abstract: 1291315 Thermal regenerators FORD MOTOR CO Ltd 4 Aug 1970 [4 Sept 1969] 37482/70 Heading F4K In a disc-shaped regenerator core 10 comprising a solid hub 12 surrounded by ceramic material 14, a plurality of grooves 16 are formed in the outer surface of the rim of the core, the grooves containing a material 22 having a higher coefficient of thermal expansion than the core material. At operating temperatures the material 22 exerts compressive forces, in the arrow directions 24, on the rim, which forces prevent cracking occurring. As shown a solid semicylindrical ceramic plug 18 is bonded into each groove with two types of cement 20, 22. The cement 20 is a foam-type inorganic cement having thermal expansion properties equal to those of the core material 14, while the cement 22, which comprises mullite in sodium silicate, constitutes the high expansion coefficient material. The solid ceramic plugs 18 serve to transmit driving forces from a surrounding ring gear (not shown) to the core itself. In an alternative embodiment the grooves may be of reduced size and filled completely with a material having the high thermal expansion properties of cement 22. The grooves may take the form of scalloped slots.
Patent GB-929658-A (GB)
Title: Process for the production of 4-methyl-5,6-dihydro-2h-pyran
Inventor: ADDY LESLIE ERNEST
IPC: C07D309/10
Filed: 1960-11-01
Abstract: 4-Methyl- 5,6-dihydro -2H-pyran is produced by heating 4,4-dimethyl-1,3-dioxane in the liquid phase in the presence of ferric chloride, zinc chloride, mercuric chloride and/or stannic chloride as catalyst in the absence of added water.  The process may be carried out at temperatures in the range 20-150 DEG C. and at increased or reduced pressure.  Preferably the reaction is carried out by refluxing a reaction mixture containing the catalyst in solution in the dioxane and if desired an inert liquid diluent under fractionating conditions and taking off an overhead fraction containing the dihydropyran and water formed in the reaction.
Patent GB-1074422-A (GB)
Title: Improvements in or relating to packing elements for use in the random packing of devices for heat and/or material exhange between gases and liquids
IPC: B01J19/30
Filed: 1964-09-15
Abstract: Elements for random packing in gas/liquid contact columns have at least 50%, preferably at least 75% of their total wall area provided with circular, square, polygonal or elongated apertures, the total area of the apertures in an elements being between 30 and 60%, preferably 50% of the total wall area and in the case of circular, square or polygonal apertures each aperture has an area of not more than 3 mm2, preferably 1 mm2, and in the case of elongated apertures an area of not more than 6 mm2, preferably 2 mm2.  The apertures do not extend to the rims of the elements and the elongated apertures may be rectangular, diamond-shaped or elliptical.  The elements may be made of sheet or foil material which may have grooves or crossing-grooves.  The elements may be of short cylindrical with or without bridges, or saddles.
Patent GB-1149784-A (GB)
Title: Process for catalytic hydrogenation of dicarboxylic anhydrides and catalyst therefor
IPC: C07D307/08
Filed: 1966-08-23
Abstract: 1,149,784. Hydrogenation of dicarboxylic anhydrides. MITSUBISHI PETROCHEMICAL CO. Ltd. 23 Aug., 1966 [23 Aug., 1965 (2); 3 Sept., 1965; 5 April, 1966], No. 37720/66. Heading C2C. [Also in Division B1] Hydrogenated products of cyclic dicarboxylic anhydrides are produced by subjecting a cyclic dicarboxylic anhydride to catalytic hydrogenation in the presence of a catalyst containing nickel and rhenium (see Division B1). Preferably maleic anhydride is hydrogenated to give mainly γ-butyrolactone and tetrahydrofuran in a two-stage process comprising a first stage under relatively mild conditions e.g. a reaction period of ¢-1 hour at 30-150 C. and a pressure of 30-100 kg/cm.<SP>2</SP> and a second stage under more severe conditions e.g. 2-10 hours at 240-350 C. and 100-300 kg/cm.<SP>2</SP>, each stage being effected in the presence of the Ni/Re catalyst. Minor amounts of n-propanol, n-butanol, propionic acid, succinic acid and succinic anhydride are also formed.
Patent GB-1428278-A (GB)
Title: Selective extraction of zinc cadmium and indium from aqueous solutions
IPC: C22B3/38
Filed: 1973-08-09
Abstract: 1428278 Extraction of zinc, cadmium and indium BAYER AG and DUISBURGER KUPFERHUTTE 9 Aug 1973 [11 Aug 1972] 37798/73 Heading C1A Zn, Cd and In are recovered by selectively extracting a solution containing also Cl<SP>1</SP> with an organic liquid containing a phosphonic acid di-ester and/or a phosphinic acid ester (including 1-oxo-phospholine derivatives) as metal extractor and eluting. Excess chloride (1-3 mol./l.) and at least one other non-ferrous metal may be present. The pH of the solution may be 0-6 and the temperature 0-60 C. Zn and In may be preferentially extracted at pH#1À5 whilst Cd may be preferentially extracted at pH<1À5, e.g. at a concentration of HCl of 0À5-1 mol. per litre. The process may be carried out by continuous countercurrent extraction. The metal extractant may be diluted with inert water-insoluble solvents, e.g. kerosene. Elution may be carried out with water containing Na 2 SO 4  and the metal recovered from the resulting solution. Zn ions and Cl ions may be extracted from a solution of zinc sulphate containing chloride ions to give a solution substantially free from chloride ions.
Patent GB-1223099-A (GB)
Title: Improvements in and relating to electrical switches
Inventor: BORISOV KONSTANTIN GRIGORIEVIC
IPC: H04L13/16
Filed: 1969-07-29
Abstract: 1,223,099. Capacitors. ORDENA TRUDOVOGO KRASNOGO ZNAMENI ZAVOD ELEKTROIZMERITELNYKH PRIBOROV. 29 July, 1969, No. 37888/69. Heading HIM. A push-button key unit of a data input device comprises push-rod 2 with pull-back spring 3 and actuation of the push-button moves isolated capacitor electrode 4 towards or away from fixed electrodes 5 mounted on insulating packing 6 on frame 1. Electrode 4 is attached to push-rod 2 through insulated packing 7 acting as a shock absorber, and is coated with dielectric layer 8. One fixed electrode is connected to an external voltage source, the other is coupled with the input of an amplifier of the device. To increase the maximum to minimum capacitor ratio, the push-rod may carry a second oppositely facing isolated electrode, and the assembly moves between two pairs of fixed electrodes (Fig. 2, not shown), and the two moving electrodes may be electrically interconnected, or replaced by a single plate, to increase the selection ratio. A keyboard may comprise a number of the units, with the fixed electrodes mounted on a common support or supports.
Patent GB-913256-A (GB)
Title: Textile machines yarn package creels
Inventor: NESBITT-DUFORT TIMOTHY
IPC: B65H49/12
Filed: 1960-11-05
Abstract: 913,256. Creel arrangements. SCRAGG & SONS Ltd., ERNEST. Sept. 29, 1961 [Nov. 5, 1960], No. 38106/60. Class 120 (2). In apparatus, e.g. that of Specification 801,343, for subjecting a number of running yarns to heat-treatment, yarn packages are disposed in pairs between heating-elements, one yarn from each pair being passed through a guide 19 to a heating element 13 by a forwarding device, e.g. rollers 21, 22, below the element. As shown, two pairs of yarn packages are employed and the element has a double track to which the yarns run in parallel after leaving the device 21, 22. For each pair, the tag end of the bobbin in use is connected to the leading-end of the other, and the bobbins are connected to a support 11 by push-on or clip-on means and are inclined towards one another.
Patent GB-927971-A (GB)
Title: Process for separating hydrocarbons
IPC: C07C7/152
Filed: 1961-10-26
Abstract: Aromatic hydrocarbons are separated from other hydrocarbons by selective solution of the aromatic hydrocarbon or aromatic hydrocarbons are separated from olefins by selective solution of the latter in an aqueous solution of silver fluoborate and/or fluosilicate and optionally a stable fluoborate or fluosilicate of a second metal cation which has a charge to ionic radius in Angstrom units of more than one.  The second metal may be a Group II metal with an atomic number of 4-56, copper, lead or lithium, the molar ratio of silver to second metal may be 1-10:1 and the second metal concentration may be 4-12 molar.  Temperatures of 0 DEG -50 DEG C. are used.  Aromatic hydrocarbons may be selectively dissolved in the presence of saturated hydrocarbons and by using high silver concentrations (e.g. 6-12 molar silver fluoborate) of olefins, although with low concentrations the olefin is selectively dissolved. Acetylene should not be present in concentrations of more than 1%.
Patent GB-327398-A (GB)
Title: Improvements in or relating to radiators for transformer and other like tanks
IPC: H01F27/12
Filed: 1928-12-29
Abstract: 327,398. British Electric Transformer Co., Ltd., and Thompson, J. L. Dec. 29, 1928. Concentric-tube apparatus; tubes, cross-sections of.-Radiator elements for electric transformer and like tanks consist of units each comprising a tube length 1, Fig. 1, connected at one end to a header member 3 provided with two or more lateral branches 3<a> in the same plane, one of the branches being connected to the opening 4<a> in the wall of the tank 4 and others connected to the branches of other similar headers or blanked off by plates 5. The lower end of the tube length may be connected to a similar header, or, as shown, to another tube having its header at the lower end. Thus any number of elements may be connected together in alignment or side by side for parallel flow of the liquid. The tubes may have longitudinal ribs 2, and may be fitted with internal concentric, tubes 7 through which cooling air or liquid may be circulated. The headers may be formed with inner tube sections 7<a> held by longitudinal bolts 10 against the inner tubes of the tube lengths, or, as shown in Fig. 5, the inner tubes may be continuous and extended upwards through stuffing-boxes, upward air currents being induced therein. Spiral baffles may be provided in the annular space between the tubes. The tubes may be flanged, or may have plain ends for welding to the headers, and may be formed of castings or pressings of non corrosive material such as an aluminium alloy.